Under this nano-initiative program, we have achieved a 300% field concentration at infrared wavelength using a 2D hole-array plasmonic structure. This is, to the best of our knowledge, the highest enhancement ever been reported in the infrared. Furthermore, we identify two key mechanisms, the electromagnetic tunneling and a hole-array mediated plasmonic resonance, which are responsible for the extraordinary field enhancement. We have also been successful in the process development and sample growth for the realization of an integrated 2D hole-array/quantum-dot-infrared-detector device. Under the influence of a strong plasmonic resonance, we successfully demonstrated a more than 100% enhancement of infrared photo-response and detectivity, the best ever been achieved using this type of plasmonic device. Furthermore, we identify three criteria for achieving an optimum plasmonic-QD interaction: (1) spectral matching of the plasmonic resonance to QD spectral response; (2) design optimization to improve light transmittance through the 2D holes; and (3) spatial matching of plasmonic field to the QD region. By doing so, we show that it is possible to achieve a ten times enhancement of photo-response and detectivity.